package cn.smbms.tools;

public class Singleton {
    private static Singleton singleton;
    private Singleton(){
        //在整个应用运行期间，只执行一次的业务代码操作（如读取配置文件的操作）
    }
    public static class SingletonHelper{
        private static final Singleton INSTANCE = new Singleton();
    }
    public static Singleton getInstance(){
        singleton = SingletonHelper.INSTANCE;
        return singleton;
    }
    public static Singleton test(){
        return singleton;
    }
}
